It seems that the index template is outdated and causing the below error.
elasticsearch-173_1 | [2015-12-07 14:09:34,486][DEBUG][action.bulk ] [Johnny Blaze] [nginxbeat-2015.12.07][0] failed to execute bulk item (index) index {[nginxbeat-2015.12.07][nginx][AVF8xq8La67Tfhoq4r4c], source[{"@timestamp":"2015-12-07T14:09:33.476Z","beat":{"hostname":"fairy-lenovo-K29","name":"fairy-lenovo-K29"},"count":1,"format":"stub","nginx":{"accepts":8,"active":2,"current":2,"dropped":0,"handled":8,"reading":0,"requests":31,"waiting":1,"writing":1},"source":"http://127.0.0.1:8080/status#stub","type":"nginx"}]}
elasticsearch-173_1 | org.elasticsearch.index.mapper.MapperParsingException: object mapping for [nginx] tried to parse field [nginx] as object, but got EOF, has a concrete value been provided to it?
elasticsearch-173_1 | at org.elasticsearch.index.mapper.object.ObjectMapper.parse(ObjectMapper.java:495)
elasticsearch-173_1 | at org.elasticsearch.index.mapper.DocumentMapper.parse(DocumentMapper.java:544)
elasticsearch-173_1 | at org.elasticsearch.index.mapper.DocumentMapper.parse(DocumentMapper.java:493)
elasticsearch-173_1 | at org.elasticsearch.index.shard.IndexShard.prepareCreate(IndexShard.java:466)
elasticsearch-173_1 | at org.elasticsearch.action.bulk.TransportShardBulkAction.shardIndexOperation(TransportShardBulkAction.java:418)
elasticsearch-173_1 | at org.elasticsearch.action.bulk.TransportShardBulkAction.shardOperationOnPrimary(TransportShardBulkAction.java:148)
elasticsearch-173_1 | at org.elasticsearch.action.support.replication.TransportShardReplicationOperationAction$PrimaryPhase.performOnPrimary(TransportShardReplicationOperationAction.java:574)
elasticsearch-173_1 | at org.elasticsearch.action.support.replication.TransportShardReplicationOperationAction$PrimaryPhase$1.doRun(TransportShardReplicationOperationAction.java:440)
elasticsearch-173_1 | at org.elasticsearch.common.util.concurrent.AbstractRunnable.run(AbstractRunnable.java:36)
elasticsearch-173_1 | at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
elasticsearch-173_1 | at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
elasticsearch-173_1 | at java.lang.Thread.run(Thread.java:745)
It seems that the index template is outdated and causing the below error.